As of September 09, 2026, the three largest insider holders of ISPR are Michael Xue Wang (Co Chief Executive Officer, 1.43Mn shares), Michael Xue Wang (Co Chief Executive Officer, 1.43Mn shares), Michael Xue Wang (Co Chief Executive Officer, 466.88K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Michael Xue Wang | Co Chief Executive Officer | 1,892,526 | 0 | 1,892,526 | 58.2% | 02 Mar, 2026 |
| 2 | Ted Rouhani | President | 543,084 | 0 | 543,084 | 16.7% | 03 Oct, 2024 |
| 3 | Steven P. Pryzbyla | Clo And Secretary | 390,664 | 0 | 390,664 | 12.0% | 17 Feb, 2026 |
| 4 | Brent Cox | Director | 139,863 | 0 | 139,863 | 4.3% | 14 Aug, 2026 |
| 5 | Christopher Robert Burch | Director | 122,944 | 0 | 122,944 | 3.8% | 14 Aug, 2026 |
| 6 | John Fargis | Director | 120,385 | 0 | 120,385 | 3.7% | 14 Aug, 2026 |
| 7 | Daniel J. Machock | Chief Financial Officer | 40,000 | 0 | 40,000 | 1.2% | 06 Sep, 2023 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 14 Aug, 2026 | Brent Cox | Director | Acquired A | 53,555 | $0.00 | $0 | 139,863 | Direct |
| 14 Aug, 2026 | John Fargis | Director | Acquired A | 45,760 | $0.00 | $0 | 120,385 | Direct |
| 14 Aug, 2026 | Christopher Robert Burch | Director | Acquired A | 45,760 | $0.00 | $0 | 122,944 | Direct |
| 19 Mar, 2026 | Christopher Robert Burch | Director | Acquired A | 35,526 | $0.00 | $0 | 77,184 | Direct |
| 19 Mar, 2026 | Brent Cox | Director | Acquired A | 35,526 | $0.00 | $0 | 86,308 | Direct |
| 19 Mar, 2026 | John Fargis | Director | Acquired A | 35,526 | $0.00 | $0 | 74,625 | Direct |
| 27 Feb, 2026 | Michael Xue Wang | Co Chief Executive Officer | Acquired P | 984 | $2.38 | $2.34K | 462,866 | Direct |
| 27 Feb, 2026 | Michael Xue Wang | Co Chief Executive Officer | Acquired P | 984 | $2.38 | $2.34K | 462,866 | Direct |
| 27 Feb, 2026 | Michael Xue Wang | Co Chief Executive Officer | Acquired P | 984 | $2.38 | $2.34K | 462,866 | Direct |
| 27 Feb, 2026 | Michael Xue Wang | Co Chief Executive Officer | Acquired P | 984 | $2.38 | $2.34K | 462,866 | Direct |
| 27 Feb, 2026 | Michael Xue Wang | Co Chief Executive Officer | Acquired P | 100 | $2.39 | $239 | 462,966 | Direct |
| 27 Feb, 2026 | Michael Xue Wang | Co Chief Executive Officer | Acquired P | 100 | $2.39 | $239 | 462,966 | Direct |
| 27 Feb, 2026 | Michael Xue Wang | Co Chief Executive Officer | Acquired P | 100 | $2.39 | $239 | 462,966 | Direct |
| 27 Feb, 2026 | Michael Xue Wang | Co Chief Executive Officer | Acquired P | 100 | $2.39 | $239 | 462,966 | Direct |
| 27 Feb, 2026 | Michael Xue Wang | Co Chief Executive Officer | Acquired P | 916 | $2.44 | $2.23K | 463,882 | Direct |
| 27 Feb, 2026 | Michael Xue Wang | Co Chief Executive Officer | Acquired P | 916 | $2.44 | $2.23K | 463,882 | Direct |
| 27 Feb, 2026 | Michael Xue Wang | Co Chief Executive Officer | Acquired P | 916 | $2.44 | $2.23K | 463,882 | Direct |
| 27 Feb, 2026 | Michael Xue Wang | Co Chief Executive Officer | Acquired P | 916 | $2.44 | $2.23K | 463,882 | Direct |
| 02 Mar, 2026 | Michael Xue Wang | Co Chief Executive Officer | Acquired P | 100 | $2.38 | $238 | 463,982 | Direct |
| 02 Mar, 2026 | Michael Xue Wang | Co Chief Executive Officer | Acquired P | 100 | $2.38 | $238 | 463,982 | Direct |